A mobile phone screen projection device

Abstract

The utility model provides a kind of mobile phone screen projection device, belong to wireless photographing technical field.The main body of the mobile phone screen projection device includes mutually jointed first shell and second shell, and display screen is arranged between the first shell and the second shell.The side of the second shell away from the first shell is provided with magnetic attraction piece;One side of the magnetic attraction piece is provided with mounting groove, and detachable jointing piece is arranged on the mounting groove, and the jointing piece is provided with rectangularly arranged jointing position.The screen projection device can be fixed on the mobile phone by magnetic attraction piece or jointing piece, and the use of the screen projection device is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of wireless photography technology, and in particular to a mobile phone screen mirroring device. Background Technology

[0002] With the rapid development of technology, smartphones have become deeply integrated into people's lives, especially in the field of photography, where their convenience has made them a primary tool for daily recording and travel commemoration. Most smartphones have front-facing cameras with significantly lower resolution than their rear cameras, making the rear camera the preferred choice for users seeking high-quality photos due to its higher resolution and superior image quality. However, when using the rear camera, users cannot directly observe the phone screen, making it difficult to accurately adjust composition, expression, and shooting angle. If someone else assists in taking the photo, the results often fall short of expectations due to differences in the photographer's aesthetic sense and skill. Relying on the phone's time-lapse function makes it difficult for the photographer to control the timing and details of the shot, resulting in a very difficult-to-take satisfactory photo. To solve this technical problem, a photography aid device has been designed. This device magnetically attaches to the back of the phone and communicates with the phone, synchronizing with the phone's display screen to improve the rear-facing camera experience. However, some phones on the market cannot be magnetically attached, so the photography aid device cannot be effectively fixed to the phone, limiting its use.

[0003] Therefore, improvements are needed to this photography aid to overcome the shortcomings of existing technology. Utility Model Content

[0004] To overcome the problems existing in related technologies, one of the objectives of this utility model is to provide a mobile phone screen mirroring device that can be fixed to a mobile phone by magnetic or snap-fit ​​components, has a wide range of compatibility, and makes the screen mirroring device more convenient to use.

[0005] A mobile phone screen mirroring device includes a main body, the main body including a first shell and a second shell that are snapped together, and a display screen is disposed between the first shell and the second shell;

[0006] The second housing has a magnetic suction component on the side opposite to the first housing; the magnetic suction component has a mounting groove on one side, and a detachable snap-fit ​​component is provided on the mounting groove, and the snap-fit ​​component has a rectangular snap-fit ​​position.

[0007] In a preferred embodiment of this invention, a rotating shaft is provided in the mounting groove, and a snap-fit ​​member is disposed on the rotating shaft and hinged to the rotating shaft.

[0008] In a preferred embodiment of this utility model, the snap-fit ​​component includes a connecting rod and a snap-fit ​​claw, one end of the connecting rod is provided with a connector, and the other end is fixedly connected to the snap-fit ​​claw.

[0009] The connecting rod is snapped onto the rotating shaft via a connector, and the pawl is provided with a rectangular snap-fit ​​position.

[0010] In a preferred embodiment of this invention, the connector is provided with a slot, the slot has a circular cross-section, and a card interface is provided on one side of the slot, the length direction of which is along the axial direction of the rotating shaft.

[0011] In a preferred embodiment of this utility model, a receiving cavity is formed between the first housing and the second housing, a main control circuit board is disposed in the receiving cavity, and the display screen is electrically connected to the main control circuit board;

[0012] The main control circuit board is also provided with a wired connection interface, which includes at least one of the following: a Type-C interface, an HDMI interface, a Lightning interface, and a Micro-USB interface;

[0013] The wired connection interface is exposed on the side wall of the second housing.

[0014] In a preferred embodiment of this invention, a storage battery is further provided inside the cavity, and a charging interface is further provided on the second housing. Both the charging interface and the storage battery are electrically connected to the main control circuit board.

[0015] In a preferred embodiment of this invention, the main control circuit board is equipped with a WiFi module and a Bluetooth module.

[0016] In a preferred embodiment of this invention, the second housing is provided with anti-slip texture, which is provided on the opposite side walls of the second housing.

[0017] The beneficial effects of this utility model are as follows:

[0018] This utility model provides a mobile phone screen mirroring device. The main body of the device includes a first housing and a second housing that are interlocked, with a display screen disposed between the first and second housings. A magnetic component is provided on the side of the second housing facing away from the first housing; a mounting groove is provided on one side of the magnetic component, and a detachable snap-fit ​​component is provided on the mounting groove. The snap-fit ​​component has rectangular snap-fit ​​positions. During use, when the device is a mobile phone with native magnetic attachment, the magnetic component of the second housing is simply placed against the magnetic attachment area on the back of the phone to achieve stable fixation between the screen mirroring device and the phone. When the device is a mobile phone without native magnetic attachment, the length of the snap-fit ​​position is adjusted according to the width of the phone, and the phone is snapped into the snap-fit ​​position to achieve stable fixation between the screen mirroring device and the phone. With a dual fixing structure of "magnetic attachment + detachable snap-fit", the magnetic attachment can be used with native magnetic phones, while the snap-fit ​​can be used with non-magnetic phones of different widths through adjustable snap-fit ​​positions. This breaks the limitation of traditional screen projectors that "only a single fixing method can be used with specific models". Both Android and Apple system phones can be stably fixed without the need to purchase special accessories, reducing user costs and improving device versatility. Attached Figure Description

[0019] Figure 1 This is a perspective view of the mobile phone screen mirroring device provided in an embodiment of this utility model;

[0020] Figure 2 This is a bottom view of the mobile phone screen mirroring device provided in an embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram of the mobile phone screen mirroring device provided in an embodiment of the present invention, excluding the first housing;

[0022] Figure 4 This is a schematic diagram of the connecting rod provided in an embodiment of this utility model.

[0023] Figure label:

[0024] 1. Main body; 11. First housing; 12. Second housing; 121. Wired connection interface; 122. Charging interface; 123. Mounting slot; 124. Rotating shaft; 2. Magnetic suction component; 3. Snap-fit ​​component; 31. Connecting rod; 311. Slot; 32. Claw; 4. Display screen; 5. Main control circuit board; 51. WiFi module; 52. Bluetooth module; 6. Battery. Detailed Implementation

[0025] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0026] When taking photos with the rear camera, users cannot directly observe the phone screen, making it difficult to accurately adjust composition, expression, and shooting angle. If someone else assists, the photos often fail to meet expectations due to differences in the photographer's aesthetic sense and skill. Relying on the phone's time-lapse function makes it difficult to control the timing and details of the shot, as the photographer cannot view the lens in real-time, resulting in significant difficulty in taking satisfactory photos. To address this technical problem of not being able to observe the phone screen when using the rear camera, a photo-taking aid has been designed. This device magnetically attaches to the back of the phone and communicates with it, synchronizing with the phone's display to improve the rear camera experience. However, some phones on the market cannot be magnetically attached, preventing the photo-taking aid from being effectively fixed, thus limiting its use. Therefore, this application provides a mobile phone screen mirroring device.

[0027] Example

[0028] See Figures 1-4 The mobile phone screen mirroring device provided in this embodiment can be fixed to the mobile phone by magnetic attachment 2 or snap-fit ​​attachment 3, which has a wide range of compatibility and makes the screen mirroring device more convenient to use.

[0029] A mobile phone screen mirroring device includes a main body 1, which includes a first housing 11 and a second housing 12 that are interlocked with each other, and a display screen 4 is disposed between the first housing 11 and the second housing 12.

[0030] The second housing 12 is provided with a magnetic suction member 2 on the side opposite to the first housing 11; a mounting groove 123 is provided on one side of the magnetic suction member 2, and a detachable snap-fit ​​member 3 is provided on the mounting groove 123, and a snap-fit ​​position is provided on the snap-fit ​​member 3 in a rectangular shape.

[0031] Specifically, the main body 1 includes a first housing 11 and a second housing 12 that are interlocked. The second housing 12 is injection molded from ABS engineering plastic, combining lightweight and drop resistance. A waterproof rubber ring is provided at the interlocking point to improve the overall dustproof and waterproof performance (protection level up to IP54), making it suitable for everyday outdoor photography. The first housing 11 is made of transparent material and will not affect the display of the screen 4. After the first housing 11 and the second housing 12 are interlocked, they form an internal cavity for installing core functional components.

[0032] Specifically, a receiving cavity is formed between the first housing 11 and the second housing 12, and a main control circuit board 5 is disposed in the receiving cavity. The display screen 4 is electrically connected to the main control circuit board 5.

[0033] The main control circuit board 5 is also provided with a wired connection interface 121, which includes at least one of the following: a Type-C interface, an HDMI interface, a Lightning interface, and a Micro-USB interface;

[0034] The wired connection interface 121 is exposed on the side wall of the second housing 12. The Type-C interface supports the USB 3.0 protocol, enabling high-speed data transmission and reverse charging; the Micro-USB interface is compatible with older mobile terminals, improving device compatibility. The wired connection interface 121 is exposed on the side wall of the second housing 12, and a flip-up silicone dust cover is provided at the interface. When not in use, the dust cover can be closed to further enhance the dustproof and waterproof effect of the housing cavity.

[0035] Furthermore, a battery 6 is also provided inside the receiving cavity, and a charging interface 122 is also provided on the second housing 12. Both the charging interface 122 and the battery 6 are electrically connected to the main control circuit board 5. The battery is electrically connected to the main control circuit board 5 through nickel strips, and can provide continuous power to the main control circuit board 5, the display screen 4, the WiFi module 51, and the Bluetooth module 52. The charging interface 122 is a Type-C interface (separately set from the wired connection interface 121). Both the charging interface 122 and the battery 6 are electrically connected to the main control circuit board 5. The main control circuit board 5 can provide overcharge and over-discharge protection during the charging process to prevent damage to the battery 6.

[0036] Furthermore, the main control circuit board 5 is equipped with a WiFi module 51 and a Bluetooth module 52.

[0037] In a specific implementation, the main control circuit board 5 uses an FR-4 epoxy glass cloth substrate and is equipped with a Snapdragon 870 control chip. This chip has high-efficiency signal processing capabilities and can simultaneously handle camera control commands and display signal transmission. The main control circuit board 5 also integrates a WiFi module 51 and a Bluetooth module 52. The WiFi module 51 is a SYN480R model and supports…

[0038] The IEEE 802.11 b / g / n protocol enables high-speed display signal interaction with external mobile terminals, with a maximum transmission rate of 150Mbps. The Bluetooth module model 52 is nRF52840, which supports the Bluetooth 5.2 protocol and has a maximum transmission distance of 10m. It can stably receive and send photo control signals.

[0039] When using this screen projector, turn on your phone's Bluetooth and WiFi functions. Your phone searches for and connects to the projector's Bluetooth module 52 (model nRF52840) and WiFi module 51 (model SYN480R). Enter the preset password to complete pairing. Press the projector's Bluetooth camera button. The control signal is transmitted through the control circuit board to the Bluetooth module 52, and then sent to the phone to trigger the phone to take a picture. At the same time, the phone's camera image is transmitted through the WiFi module 51 to the control circuit board, and finally projected in real time onto the LCD screen 4 of the first housing 11. The user can observe the composition and details of the shot on the screen 4. If you need to adjust the shooting angle, press the angle adjustment button. After the command is processed by the control circuit board, it can be used to adjust the angle in conjunction with the phone stand (which needs to be paired with the projector in advance) without manually touching the phone.

[0040] In the aforementioned mobile phone screen projector, when using a phone with native magnetic attachment, simply attach the magnetic attachment 2 of the second housing 12 to the magnetic area on the back of the phone to achieve stable fixation between the projector and the phone. When using a phone without native magnetic attachment, adjust the length of the mounting bracket according to the phone's width, and then insert the phone into the mounting bracket to achieve stable fixation between the projector and the phone. Through this dual fixing structure of "magnetic attachment 2 + detachable mounting bracket 3," the magnetic attachment 2 can be adapted to phones with native magnetic attachment, while the mounting bracket 3, with its adjustable mounting bracket, can adapt to non-magnetic phones of different widths. This breaks the limitation of traditional screen projectors that "only use a single fixing method to fit specific models," allowing for stable fixation of both Android and Apple system phones without the need to purchase additional dedicated accessories, reducing user costs and improving device versatility.

[0041] In a specific embodiment, a rotating shaft 124 is provided in the mounting groove 123, and the snap-fit ​​3 is disposed on the rotating shaft 124 and is hinged to the rotating shaft 124.

[0042] Furthermore, the snap-fit ​​component 3 includes a connecting rod 31 and a claw 32, one end of the connecting rod 31 is provided with a connector, and the other end is fixedly connected to the claw 32;

[0043] The connecting rod 31 is snapped onto the rotating shaft 124 via a connector, and the claw 32 is provided with a rectangular snap-fit ​​position.

[0044] Furthermore, the connector is provided with a slot 311, the slot 311 has a circular cross-section, and a card interface is provided on one side of the slot 311. The length direction of the card interface is along the axial direction of the rotating shaft 124.

[0045] Specifically, the connector 3 includes a connecting rod 31 and a claw 32, both integrally injection molded (made of PC plastic). The width of the card interface is slightly smaller than the inner diameter of the card slot 311. Through elastic deformation, the connector head can be snapped onto the rotating shaft 124, realizing the hinge between the connector 3 and the rotating shaft 124, while also facilitating the disassembly and replacement of the connector 3. The other end of the connecting rod 31 is fixedly connected to the claw 32. The claw 32 is provided with a rectangular card slot. The length of the card slot can be adjusted by the telescopic buckle inside the claw 32 to accommodate Android and Apple phones of different widths. The connector head of the connector 3 adopts a circular card slot 311 with a card interface, which not only achieves a stable hinge with the rotating shaft 124, but also facilitates disassembly and replacement, making operation simple. The card slot is telescopically adjustable, eliminating the need to replace the connector 3 for different phone models, reducing usage costs. At the same time, the combination and fixing method of the magnetic part 2 and the connector 3 ensures a stable connection between the device and the phone, preventing the device from becoming loose during shooting and improving the stability of use.

[0046] Furthermore, the second housing 12 is provided with anti-slip texture, which is provided on the opposite side walls of the second housing 12.

[0047] The second housing 12 has an integrally formed anti-slip texture on its opposite side walls (which can be the top and bottom walls). The anti-slip texture can adopt a combination structure of "horizontal strip protrusions + dot-like particles". The strip protrusions are 0.8 mm high and 2 mm apart, and are evenly distributed along the length of the side wall. The dot-like particles are 1 mm in diameter and are embedded in the gaps between the strip protrusions to form an uneven surface structure. The edges of the anti-slip texture are rounded to avoid scratching fingers when holding the device and to improve grip stability by increasing friction. This is especially effective in preventing the device from slipping from the hand, particularly in situations where hands are sweaty or during outdoor bumpy conditions.

[0048] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings. In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0049] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0050] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. The above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. For those skilled in the art, this utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A mobile phone screen mirroring device, characterized in that, The main body includes a first housing and a second housing that are interlocked with each other, and a display screen is disposed between the first housing and the second housing; The second housing has a magnetic suction component on the side opposite to the first housing; the magnetic suction component has a mounting groove on one side, and a detachable snap-fit ​​component is provided on the mounting groove, and the snap-fit ​​component has a rectangular snap-fit ​​position.

2. The mobile phone screen mirroring device according to claim 1, characterized in that: A rotating shaft is provided in the mounting groove, and the snap-fit ​​component is disposed on the rotating shaft and is hinged to the rotating shaft.

3. The mobile phone screen mirroring device according to claim 2, characterized in that: The snap-fit ​​component includes a connecting rod and a claw, with a connector head at one end of the connecting rod and a fixed connection between the opposite end and the claw. The connecting rod is snapped onto the rotating shaft via a connector, and the pawl is provided with a rectangular snap-fit ​​position.

4. The mobile phone screen mirroring device according to claim 3, characterized in that: The connector is provided with a slot, the slot has a circular cross-section, and a card interface is provided on one side of the slot. The length direction of the card interface is along the axial direction of the rotating shaft.

5. The mobile phone screen mirroring device according to any one of claims 1-4, characterized in that: A receiving cavity is formed between the first housing and the second housing, and a main control circuit board is disposed in the receiving cavity. The display screen is electrically connected to the main control circuit board. The main control circuit board is also provided with a wired connection interface, which includes at least one of the following: a Type-C interface, an HDMI interface, a Lightning interface, and a Micro-USB interface; The wired connection interface is exposed on the side wall of the second housing.

6. The mobile phone screen mirroring device according to claim 5, characterized in that: The cavity is also equipped with a battery, and the second housing is also equipped with a charging interface. Both the charging interface and the battery are electrically connected to the main control circuit board.

7. The mobile phone screen mirroring device according to claim 5, characterized in that: The main control circuit board is equipped with a WiFi module and a Bluetooth module.

8. The mobile phone screen mirroring device according to any one of claims 1-4, characterized in that: The second housing is provided with anti-slip texture, which is provided on the opposite side walls of the second housing.

Images